Can you answer my questions please?

Blender has tutorials for platinum arts sandbox? Plus I'm not using blender, I use fragmotion for animations. So I need to know all about adding custom models and making them work as I want them to in the game. Theres a lack of tutorials about this. I know about the md3.cfg and I don't think I'll ne...

ok, I need to know if Md2's will work? If not how do I convert an md2 to an md3 without loosing the animations or anything?
And how do you chance the model of the player? Do you have to replace the current model? Or can it be chanced with a script and how?

Hello, I was wondering how you add custom models to use as npcs and player characters? As in i have a 3d model I want to be my player, and I'd like to know how to get it in game so I can play it. I've searched and I can't find any answer. Please let me know how thanks!